[FIX] bus: fix websocket json routes

Transform the /websocket/update_bus_presence route to type='json'
which makes more sense as a POST than a get, seeing it does things with
a parameter and doesn't return anything.

Also fixes the _update_bus_presence method that leads to access errors
when accessed from HTTP when the user is the public one (only portal/
internal users should update their presences).

Part-of: odoo/odoo#100416

addons/bus/controllers/websocket.py

@@ -42,9 +42,10 @@ class WebsocketController(Controller):
         notifications = request.env['bus.bus']._poll(channels, last)
         return {'channels': channels, 'notifications': notifications}
 
-    @route('/websocket/update_bus_presence', type='http', auth='public', cors='*')
+    @route('/websocket/update_bus_presence', type='json', auth='public', cors='*')
     def update_bus_presence(self, inactivity_period, im_status_ids_by_model):
         request.env['ir.websocket']._update_bus_presence(int(inactivity_period), im_status_ids_by_model)
+        return {}
 
     @route('/bus/websocket_worker_bundle', type='http', auth='public', cors='*')
     def get_websocket_worker_bundle(self):

addons/bus/models/ir_websocket.py

@@ -34,7 +34,7 @@ class IrWebsocket(models.AbstractModel):
         dispatch.subscribe(channels, data['last'], self.env.registry.db_name, wsrequest.ws)
 
     def _update_bus_presence(self, inactivity_period, im_status_ids_by_model):
-        if self.env.uid:
+        if self.env.user and not self.env.user._is_public():
             self.env['bus.presence'].update(
                 inactivity_period,
                 identity_field='user_id',

addons/mail/models/ir_websocket.py

@@ -34,7 +34,7 @@ class IrWebsocket(models.AbstractModel):
 
     def _update_bus_presence(self, inactivity_period, im_status_ids_by_model):
         super()._update_bus_presence(inactivity_period, im_status_ids_by_model)
-        if not self.env.uid:
+        if not self.env.user or self.env.user._is_public():
             #  This method can either be called due to an http or a
             #  websocket request. The request itself is necessary to
             #  retrieve the current guest. Let's retrieve the proper